Question Detail
Question
Which of the following amino acids has an aromatic R group?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Tyrosine has an aromatic R group (phenolic -CH2-C6H4-OH). Serine (-CH2OH), cysteine (-CH2SH), and asparagine (-CH2CONH2) do not have aromatic groups.
Hint
Which amino acid has a phenolic side chain?